If you are searching for an awesome ROM, then you can try Oreo 8.1.0_r7 Atomic OS PLASMA v2.1 on Moto G4 Plus (XT1641, XT1644, XT1642). The important thing is that Atomic OS PLASMA v2.1 custom ROM will allow you enjoy the tremendousness of Oreo 8.1 on your Moto G4 Plus (XT1641, XT1644, XT1642). Androidbiits.com recommends that all Moto G4 Plus (XT1641, XT1644, XT1642) users must save their confidential data properly before installing Oreo 8.1 Atomic OS PLASMA v2.1 as there is a risk of data loss from XT1644.